Bolt tensioning apparatus

Details Bolt tensioning apparatus Bolt tensioning apparatus

1985-01-23

1987-04-21

Schmidt, Frederick R.

Implements or apparatus for applying pushing or pulling force

Pipe or rod jack

Tie rod tensioner

81 5738, B25B 2500

Patent

active

046590650

ABSTRACT:
A hydraulic bolt tensioner in the form of an annular hydraulic jack includes a bridge piece constituted by a plate assembly having at least one support leg which in use serves to transmit the reaction from the piston and cylinder of the jack to hardware associated with the bolt which is to be stressed. The support leg is preferably axially adjustable in length.

REFERENCES:
patent: 1347809 (1920-07-01), Frisz et al.
patent: 1429567 (1922-09-01), Carlisle
patent: 1629003 (1927-05-01), Schonfeld
patent: 3338552 (1967-08-01), Persicke
patent: 3995828 (1976-12-01), Orban
patent: 4268011 (1981-05-01), Randall
patent: 4302979 (1981-12-01), Dykmans
patent: 4391431 (1983-07-01), Maximov

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